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Finding the Fourth Proportional to 9,342.79, 13,997.09 and 7,345.79

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Solution

The fourth proportional to 9,342.79, 13,997.09 and 7,345.79 is: 11,005.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,342.79 : 13,997.09 = 7,345.79 : x
  2. Step 2: Convert to fraction form
    9,342.79/13,997.09 = 7,345.79/x
  3. Step 3: Cross multiply
    9,342.79x = 13,997.09 × 7,345.79
  4. Step 4: Simplify right side
    9,342.79x = 102,819,683.75
  5. Step 5: Solve for x
    x = 102,819,683.75/9,342.79
  6. Step 6: Final answer
    x = 11,005.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.